JPS6062469A - Polishing device - Google Patents

Abstract

PURPOSE:To make polishing for a metal mold projecting part ever so easy as well as to aim at improvements in operation efficiency, by holding a polishing body, having elasticity and sticking abrasives on its outer surface, with a holding member, while polishing a work in a way of pressing the polishing body to the work. CONSTITUTION:A polishing device is formed of locking a polishing body 1 to a holding member 2 by means of a bonding agent 3, while the polishing body 1 is of almost spherical in type and its surface is made up of sponge urethene rubber dispersing granular abrasives of Carborundum or the like, and a partically projected convex part 1a is secured tight to the holding member 2 by a bonding agent. Likewise, the holding member 2 is of tubular form, and its material in quality uses metal or resin. When this is used, an operator grips the holding member 2 and presses the surface of the polishing body 1 to a projecting part of a metal mold W to be polished, reciprocating it, thus polishing takes place. Like this, work is easy to be done and the operator is in no case fatigued so that machining efficiency is well improvable.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of the Invention] The present invention relates to an ω119 tool used for polishing molds, etc.

[Prior art]

In press molds used to press-form steel plates into the shuttle of automobile bodies, the protrusions of the die that come into contact with the steel plate must be smoothed (σl). If this is insufficient, friction will increase between the protrusion of the mold and the steel plate to be press-formed, resulting in problems such as the steel plate being torn during press-forming.

- For this reason, conventionally, an operator uses abrasive paper or abrasive cloth and presses the abrasive paper, etc. with the palm of the hand or the tip of a finger [) to polish the protrusion of the mold, ranging from rough abrasive paper to fine [I]. Change the abrasive paper one by one until the surface is smooth and almost mirror-like.
The mold was polished.

Conventional polishing tools such as abrasive paper and cloth (σ) are pressed with the worker's palm or fingertips, and the pressing force is applied to the mold. It was difficult to raise the surface to a uniform smooth surface because the force used to transfer the paper was uneven, and polishing required skill and was a difficult task. Ta.

[Purpose of the invention]

The present invention overcomes the above-mentioned problems and makes the polishing work easy.
It is an object of the present invention to provide a rIIl polishing tool that can improve work efficiency.

[Structure of the invention]

The polishing tool of the present invention has elasticity on the outer surface (I11 polishing 4Δ
an abrasive object holding an abrasive object, and a l
ζ-th holding member.

[Detailed explanation of the structure of the invention]

The polishing object in the polishing tool of the present invention has elasticity, and has an abrasive material held on its outer surface by an adhesive or the like. It is also possible to use a sanding method in which commercially available abrasive paper is applied to the outer surface of the shell. A space may be formed inside the polishing object, or the space may be filled with an elastic material such as a sponge. When a space is formed, it is preferable that the space is filled with a fluid having a constant convexity or a variable convexity, since the polishing object as a whole needs to have elasticity. Air is preferable as the fluid. If the amount of the fluid is constant, the pressure in the space will be constant, but the amount of the fluid can be adjusted by, for example, connecting a valve and an output pipe to the space. With the 4B4 configuration and the J- configuration, the pressure in the space can be adjusted freely, and it can be immediately adjusted to the shape and size of the convex portion (or concave portion) of the mold that is the workpiece.

The shape of the polished object in its natural state does not matter.

Preferably, it has a cylindrical shape that is easy to rotate.
It may also be shaped like a rugby ball.

The holding member is used to hold the abrasive member, so it has a shape that is easy for an operator to hold in the hand. It becomes.

〔Effect of the invention〕

The polishing tool according to the present invention does not work by holding the polishing object by hand and pressing it to the place to be processed, but by holding the polishing object by a holding member, and manually holding the holding member. Since the holding member is held by the machine or held by the machine for machining, the work is easy and the worker does not get tired, and therefore it is possible to improve machining efficiency or work efficiency. In particular, if automation is performed using machines, the work can be further increased.

〔Example〕

Hereinafter, embodiments of the present invention will be described with reference to the attached drawings.

Embodiment 1 FIG. 1 shows the first embodiment of the present invention, in which the i+
7113-'1 What about shellfish? It is constructed by fixing an iJI polishing object 1 to a holding member 2 with a contacting agent 3.

The polishing object 1 is approximately spherical and is made of foamed urethane rubber with carporundum granules dispersed on its surface.The partially protruding convex portion 1a is attached to the holding member 2 by adhesive Fixed.

The holding member 2 has a cylindrical shape and is made of metal or resin.
11 years old.

When using the polishing tool, the operator holds the holding member 2 and presses the surface of the polishing object 1 against the protrusion of the mold W to be polished (FIG. 2), so that the surface of the paper in FIG. Polish by reciprocating in the direction of revision. In FIG. 2, a portion 1b of the ω1 polishing object 1 corresponding to the axial direction of the holding portion 4Jj2 is pressed against the mold W, but a portion 1c is separately provided and is 90 degrees out of phase with the portion 11).

1d may be pressed against the mold W and polished.

Embodiment 2 FIG. 3 shows a second embodiment of the present invention. This embodiment differs from the previous embodiment in that the polishing object 10 is hollow inside and the hollow 101 is In addition, the shape of the polishing object 10 is approximately triangular (rice ball shape).
This is because the holding member 20 is tapered.

The abrasive object 10 consists of an inner rubber shell 11, an outer abrasive member 12, and an inner chamber 101, and the abrasive member 12 is constructed by bonding granular materials with an adhesive. ing.

Pressure fluid (air in this embodiment) can freely enter and exit the space 101 through a pipe 102, so that the pressure inside the space 101 can be changed.

- The holding member 20 is tapered, and the member 20 is attached to the inner tapered portion 401 of the sleeve 40 installed on the machine.
It can be attached to the machine by fitting the outer tapered part 201 of the.

When attached, the sleeve 40 is relatively in the position indicated by the two-dot chain line. The inner tapered portion 202 of the holding member 20 is
It does not have to be a separate tapered shape.

Although the polishing object 10 and the holding member 20 are fixed with an adhesive 30, other fixing means such as a separate screw or a TJ pin may be used.

When using the rIJITg tool, the holding member 20 is fixed to the sleeve 40, the axis of the holding member is made vertical as shown in FIG. Polish with μ and ω. However, the axis of the holding member 20 should be horizontal as shown in FIG.
may be pressed against the convex portion of the mold W and polished.

In this embodiment, air can freely enter and exit the chamber 101 (?4
Therefore, the pressure inside the chamber 101 can be changed depending on the size and shape of the protrusion of the mold.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional view showing a first embodiment of the polishing tool according to the present invention, Fig. 2 is a sectional view showing the usage state of the polishing tool shown in Fig. FIG. 7 is a vertical cross-sectional view showing a second embodiment of the polishing tool. 1.10...Abrasive object 2.20...Holding member 3.30...Adhesive 11...Shell body 12...Abrasive member 40...Sleeve Patent applicant Toyota Industries Corporation Tomoe Co., Ltd. Manufactured by 1'
Patent attorney: Hirotoshi Okawa Patent attorney: Ugetani β Patent attorney: Akio Maruyama Figure 1 Figure 2 Figure 3

Claims (1)

[Claims] (1) Consisting of an abrasive object that has good elasticity and holds an abrasive material on at least its outer surface, and a holding member that holds a part of the abrasive object. (2) The polishing object consists of a ball-shaped shell made of an elastic material with a sealed space inside, and a polishing part held on the outer peripheral surface of the shell. 4 with fluid held in a closed space of the body
14. A sharpening tool according to claim 1. (3) The abrasive member is a polishing tool (σ) according to claim 2, wherein the abrasive member is composed of an adhesive layer attached to the surface of the shell and a granular abrasive material fixed to the adhesive layer. (4) The rtll material according to claim 2, which is an elastic material (a rubber). (5) The second claim, where the shell is in the shape of a tennis ball.
riII magai described in section. Shingu) The shell book is a special a' [request 3] with four rugby balls.
Range of +j ω as described in item 2] Polishing tool (7) The polishing object is ball-shaped, has granular abrasive material on at least the surface, and is composed of a block made of elastic material 1. The till polishing tool according to claim 1. (8) The polishing tool according to claim 7, wherein the surface is composed of a surface coating layer containing granular bait @ material. (9) The surface coating layer is made of an elastic material. (10) The abrasive tool according to claim 8, which is a special product made of an elastic material. (11) The polishing tool according to Claim 7, which includes 11 in which the ball shape is tennis ball shape. Polishing tools listed in section. (13) The ω polishing tool according to claim 7, wherein the elastic material is rubber or soft plastic. (14) The polishing tool according to claim 7, wherein the elastic material is foamed rubber or foamed plastic. (15) The polishing tool according to claim 1, wherein the kit polishing object is cylindrical. (1G) The polishing tool according to claim 1, wherein the holding member has a tapered outer peripheral surface. (17) The polishing tool according to claim 1, wherein the 'uf polishing object and the holding member are fixed with an adhesive.